HDC调试需求开发（15万预算）,能者速来！>>>
在MainStageController控制器中点击按钮会打开一个新窗口，怎么在第二次点击时判断如果弹出过这个窗口了，就不弹了 @FXML private void handleSubmitButtonAction(ActionEvent event) { actionTarget.setText("登录中..."); /** * 得到对应视图的stage */ Stage stage = (Stage) rootGridPane.getScene().getWindow(); stage.close(); // 创建新的stage Stage secondStage = new Stage(); final JmetroStageView view = new JmetroStageView(); ApplicationContext context = SpringContextUtil.getApplicationContext(); view.setApplicationContext(context); secondStage.setScene(new Scene(view.getView())); secondStage.show(); }